Recent content by JaeSun

  1. J

    Solving 2 inequalities with imaginary numbers?

    I did that. he gave us a couple test examples, and they worked. ALl we are to do is setup the main part of the program, and send the matrices to the functions.
  2. J

    Solving 2 inequalities with imaginary numbers?

    i did tell you how i attempted it. I put it in the program, gave it the function, and that is what i got? A = matrix of: 0 0 0 0 B = matrix of: 1 -1 0 3 a = matrix: -2 4 b = matrix: -1 7 and i solved for x,y . (which is done by passing the matrices to the functions that...
  3. J

    Solving 2 inequalities with imaginary numbers?

    well, problem is, my work, is done by the computer. my assignment is to do write the main program, use matrices, and get the answer, with given functions (that teacher provided). all we have to do, is pass the functionthe matrices, and get the PA=LU factorization, and the solve using front and...
  4. J

    Solving 2 inequalities with imaginary numbers?

    i should say that the title is wrong, not inwqualities
  5. J

    Solving 2 inequalities with imaginary numbers?

    I have 2 equations, imaginary ones, and 2 unknowns....trying to solve for them..but the answer i got, works with one, but not the other: i*Z1 - i*Z2 = -2 - i Z1 + 3i*Z2 = 4 + 7i where i is the imaginary number, and Z1 and Z2 are the 2 unknowns the answer i got: Z1 : 1.33333 +...
  6. J

    Strong primality test ?

    ANYONE? bump one last time as its due tomorrow and im still stuck
  7. J

    Planar graphs with minimum degree

    so maybe I can use the fact that if I can draw a geometric dual graph, then it is planar ... so I Just have to prove that I can't draw one? man, i HATE proofs
  8. J

    Planar graphs with minimum degree

    ok, here is the question: Let G be a graph with minimal degree \delta(G) = 5, but suppose there exists only one vertex v\in V_{G} such that d(v) = \delta(G). Prove that G is not planar. ok, i can do this visually. if i draw the vertex v and its edges to its points, and then draw points...
  9. J

    Strong primality test ?

    bump ... anyone?
  10. J

    Strong primality test ?

    strong primality test ... ?? ok, bear with me ... we learned weak primality tests (given n and base a,::: a^(n-1) mod n ::: if it does not equal 1, then its composite, if it equals 1, then MAYBE prime) ... then we learned strong primes .... think of n-1 = m2^k when m is odd. test ::: a^m...
  11. J

    Graph theory: quick question(s)

    another question. what is the independent number/set ? http://mathworld.wolfram.com/IndependentSet.html looking at that, and a problem from my homework which the answer is 4: http://www.nevada.edu/%7Ebaragar/courses/MAT351ex2sample.pdf [Broken] problem # 1b finding the...
  12. J

    100 animals 100 dollars? easy? I thought so.

    i had a different answer 4 cows = $40 24 pigs = $24 72 chickens = $36 =============== 100 animals at $100
  13. J

    100 animals 100 dollars? easy? I thought so.

    at least for my answer and what he wrote above (.5) which i took as 50 cents
  14. J

    100 animals 100 dollars? easy? I thought so.

    its not nickels, but $0.50
  15. J

    100 animals 100 dollars? easy? I thought so.

    nope ... the number of chickens is not a multiple of 20
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